10202121110211 has 16 divisors (see below), whose sum is σ = 13617688902144. Its totient is φ = 6793985990304.

The previous prime is 10202121110183. The next prime is 10202121110221. The reversal of 10202121110211 is 11201112120201.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-10202121110211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10202121110221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17707500 + ... + 18274566.

It is an arithmetic number, because the mean of its divisors is an integer number (851105556384).

Almost surely, 2^{10202121110211} is an apocalyptic number.

10202121110211 is a deficient number, since it is larger than the sum of its proper divisors (3415567791933).

10202121110211 is a wasteful number, since it uses less digits than its factorization.

10202121110211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573610.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 10202121110211 its reverse (11201112120201), we get a palindrome (21403233230412).

The spelling of 10202121110211 in words is "ten trillion, two hundred two billion, one hundred twenty-one million, one hundred ten thousand, two hundred eleven".